How to get OHLC only once

rrjain

Hello,

I'm using following code which is running in infinite loop, I need data only 1 time to read the OHLC and want to perform further action. What needs to be modified to close the loop without getting error after getting 1 set of data..

inst_token = [3050241]
def on_connect(ws, response):
      ws.subscribe(inst_token)
      ws.set_mode(ws.MODE_QUOTE, inst_token)
kws.on_ticks = on_ticks
kws.on_connect = on_connect
kws.connect()

Thanks and Regards,
Ritesh

rakeshr

@rrjain
You might unsubscribe token in real-time. Go through pykiteconnect FAQ for example code.

rrjain

Hello,

@rakeshr

Can you please guide where I'm wrong, as the data is still coming..

def on_connect(ws, response):
ws.subscribe(inst_token)
ws.set_mode(ws.MODE_QUOTE, inst_token)

def unsubscribe(self, inst_token):
"""
Unsubscribe the given list of instrument_tokens.
- `instrument_tokens` is list of instrument_tokens to unsubscribe.
"""
try:
self.ws.sendMessage(
six.b(json.dumps({"a": self._message_unsubscribe, "v": inst_token}))
)
for token in inst_token:
try:
del(self.subscribed_tokens[token])
except KeyError:
pass
return True
except Exception as e:
self._close(reason="Error while unsubscribe: {}".format(str(e)))
raise

kws.on_ticks = on_ticks
kws.on_connect = on_connect
kws.unsubscribe = unsubscribe

kws.connect()

Regards,
Ritesh Jain

rakeshr

@rrjain

def unsubscribe(self, inst_token):
"""
Unsubscribe the given list of instrument_tokens.
- `instrument_tokens` is list of instrument_tokens to unsubscribe.
"""
try:
self.ws.sendMessage(
six.b(json.dumps({"a": self._message_unsubscribe, "v": inst_token}))
)
for token in inst_token:
try:
del(self.subscribed_tokens[token])
except KeyError:
pass
return True
except Exception as e:
self._close(reason="Error while unsubscribe: {}".format(str(e)))
raise

You don't have to write above unsubscribe source function at your end. You can directly inherit it from ws class.
Eg.
ws.unsubscribe(token_list)
You can go through this thread. We have explained, how to subsribe/unsubscribe token in real time.

rrjain

Thanks @rakeshr

It worked fine...

One more query, I know this is not the platform to get coding support, but would be a great help if you can guide....

In Python after executing all logic, I am getting output saved in variable named "SP"

Say the Value in SP = BANKNIFTY20JUN21800PE, how can I pull ticker data for this saved in SP..

Tried this, but not working

tickerlist = [SP]

Regards,
Ritesh Jain

rakeshr

@rrjain

Say the Value in SP = BANKNIFTY20JUN21800PE, how can I pull ticker data for this saved in SP

You need to use an instrument token to fetch ticker data not trading symbol. You might write helper function at your end, which accepts trading symbol and returns its instrument token, you can use this file for mapping.

rrjain

@rakeshr

Yes I have code that convert it to instrument token, I have tested the complete script and the same is perfectly fine...

What I need your guidance is i don't want to manually enter name, and need to pull from SP

where SP = BANKNIFTY20JUN21800PE

tickerlist = ["BANKNIFTY20JUN21800PE"]
NSELTPformat=['NSE:{}'.format(i) for i in tickerlist]

instead of this, want something like

tickerlist = [SP]
NSELTPformat=['NSE:{}'.format(i) for i in tickerlist]

Thanks and Regards,
Ritesh

rrjain

Thanks @rakeshr for your guidance, my problem is resolved...

You can please close this thread.